Imp rove me nt in lubricators



' tight for that purpose.

UNITED STATES PATENT OEEICE.

JAMES FARLEY, OF MARQUETTE, MICHIGAN.

IMPROVEMENT` I'N LUBRICATRS.

` p Specification forming part of Letters Patent No. 198,842, dated January l, 1878; application tiled "l `October8,1877. 4 i

To all whom it may concern:

Be it known that I, JAMES FARLEY, of Marquette, in the State-of Michigan, have invented certain new and usefullmprovements in OilJGups; andI do hereby declare that the following is afull, clear,vand exact description thereof, reference being had to the accompanying drawing, and to the letters of reference marked thereon, which form part of this specification.

- Thenat-ure of my invention consists in the construction and arrangement of a lubricator y to be attachedto crank-pins and cross-heads of steam-engines, or any parts of machinery that have a perpendicular or horizontal motion, as will be hereinafter more fully set forth. f

In order to enable others skilledin the art to which my invention appertainsto make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawing, in which the gure is a vertical section of my oil-cup.

The oil cup or reservoirconsists of aicage, i .A, with solid bottom B, and a central tube,

G, extending downward from the same, and

A so constructed at its lower end as to be easily inserted and `:fastened `in place.

l Within the cage A is a glass cylinder7 D; and a head, Gr,

is screwed on theupper end ofthe cage. 1 y

Suitable packing a is introduced between 4the ends of the cylinder D and the bottom B and head G, so as to make oil-tight joints when the head is screwed down sufciently The central tube C extends upward into a cylinder, D, a certain distance, and forms in its upper end a conical valve-seat, b, in .which is placed a conicalvalve, l

`Iuthe center ofthe head G is a hollow screw-plug, F, through which is screwed a set-screw, l1', for the purpose of holding down `the valve d, so that the valve can only rise a certain distance and such distance is regulated by said set-screw. When the set-screw h has been thus adjusted to regulate the movement of the valve, theset-screwislocked by a jamnut, i, thereon. l

machinery to which the lubricator maybe attached causes the oil to rise to the top,and at the same time lifts the valve, which allows the oil to flow down the tube to the crank-pin.

Thevalvebein g at the top, the oil cannot leak y out when the machinery is at rest, which would often be thefcase if the'valve were at the botvention. In'such case,l however, as known to me, the centertube is provided at the top with a cap, through which the valvestem passes, to guide and retain the valve in place. y l

In my invention this cap is dispensed with,

and the valve-is prevented from coming eutirely out of its seat by constructing the seat and valve both in conical form. This con` struction givesvan unobstructed flow of oil` into the center tube whenever the valve is raised from it.

Having-thus fully described my invention, Y

what I claim as new, and desire to secure by -Letters Patent, is y In a lubricator, the combination of the cage A, with solid4 bottom B, having central vertical tube G, with conical valve-seat bin its upperv` end, the cylinder D, screw-head G, cohical valve d, andpscrew-plug F, with setscrew h, all substantially asand forthe purposes herein set forth.

'In testimony that I claim the foregoing as l my own I affix `my signature in presence ot' two witnesses.

` JAMES FARLEY Witnesses:

M. McDERMoT, 1%. W. FooTE.

The motion of the crank or other part ofthe 

